To help compare sizes of different areas, here is a list of areas between 100 million km2 and 1,000 million (American billion) km2. See alsoareas of other orders of magnitude.
... The median age is 44 years. For every 100 females there are 93.5 males. For every 100 females age 18 and over, there are 92.2 males.
The median income for a household ...